A Utah man missed his connection at Newark Airport, went to retrieve his checked luggage, which contained a properly declared, unloaded firearm, and got arrested. He did everything right. New Jersey didn't care. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) cited that case in a proposed rule published earlier this week that would amend existing Gun Control Act regulations to protect gun owners during routine travel interruptions — a missed flight, a hotel stay, a fuel stop, a medical emergency. The Utah case isn't an outlier. New York and New Jersey have made a prosecution racket out of...